MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged as malicious by an ML classifier and contains a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains text suggesting it is a lure for a 'mediatek bluetooth driver', which is a common tactic to trick users into clicking malicious links. The presence of a large number of external PDF links, many pointing to benign content, suggests a link farm designed to obscure the malicious redirector.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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Embedded URL info EMBEDDED_URLOne or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.URL https://ttraff.cc/wix?keyword=mediatek+bluetooth+driver+windows+10
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://static.usrfiles.com/ugd/b8c837_2857027b6bdf4e08b0a0cc143409fb2b.pdf
- https://static.usrfiles.com/ugd/b8c837_1ee47d256e764390bb80a568278c3939.pdf
- https://static.usrfiles.com/ugd/b8c837_b58bd7371b9e4bb192edae163889cf27.pdf
- https://static.usrfiles.com/ugd/429b25_97aa17752ad7401a89a8e86eefba56f1.pdf
- https://static.usrfiles.com/ugd/bfbc46_c269525d350b4304b69fbf8c22a5b378.pdf
- https://cdn.shopify.com/s/files/1/0445/8138/8452/files/ncert_solutions_for_class_11_biology_chapter_7.pdf
- https://cdn.shopify.com/s/files/1/0431/5486/6333/files/nikizerolupefi.pdf
- https://cdn.shopify.com/s/files/1/0429/8774/9525/files/26797090731.pdf
- https://cdn.shopify.com/s/files/1/0435/7554/1919/files/asa_paper_format.pdf
- https://cdn.shopify.com/s/files/1/0438/3188/5986/files/bongo_flava_music_sites.pdf
- https://cdn.shopify.com/s/files/1/0434/8713/3860/files/49750408737.pdf
- https://cdn.shopify.com/s/files/1/0432/0159/3505/files/64734773025.pdf
- https://cdn.shopify.com/s/files/1/0431/7318/3643/files/62655252521.pdf
- https://static.usrfiles.com/ugd/97634b_90e4a9fd58014a14becd1d5a20375a5d.pdf
- https://static.usrfiles.com/ugd/3dd68e_59c338d18b8e4ec4b3fc2224c326c481.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000058cf.binfb106b4a36e81b9d3a9e71d2c8798d7c07f5f2f2b75fe66165c0107a2a088ef6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x58CF | 5468 bytes |
font_01_sfnt_off00006b7a.bin0b27d14ed1df78a2a98e12ca87adb2437edadeb7688a47ca332f4c6ee3da1e2c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6B7A | 12828 bytes |
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